Wil not power up

My laptop will not power up. It turns on, goes to the Acer welcome screen then gos to lightly back lit screen. I have tried removing the battery - no help. I have tried Safe Mode - No help. I have tried to start from an earlier set up - no help. As soon as it goes dark, you can here the internal power shut down. Nothing seems to work, any ideas?

My problem is very similar (aspire1640z). I switch on, acer screen comes up , windows xp starts, then the welcome screen, all VERY dark ! Then the nmessage appears - preparing to syand by and the laptop power goes off. I have tried it with battery in and mains only, and with mains on /battery in. Help!

AlfieMy problem is very similar (aspire1640z). I switch on, acer screen comes up , windows xp starts, then the welcome screen, all VERY dark ! Then the nmessage appears - preparing to syand by and the laptop power goes off. I have tried it with battery in and mains only, and with mains on /battery in. Help!
Alfie

1 Answer

Anonymous

Re: Wil not power up

I sounds like the display inverter is bad (it provides the backlighting for the display); except for the part about the internal power shutting down.
power it up with the battery removed and use a flashlight, shine it at an angle at the display and see if you can make out what should be on the display.
if you do see something on the display, look on line for a display inverter for your model.
bryansmith66@excite.com

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Drain it! You might be surprised that one day as you turn your computer
on, it shows no display. It can be caused by electrical charges on the
motherboard, I do not specifically know how it affects the display but
in case this happens to you try to do a Power Drain. >It's easy, first,
press the power button for about 5 seconds (if the indicator light for power is still lit)>Take the battery out from the laptop >Unplug the AC Adapter if it is
connected(for desktops, unplug power cord from the CPU/tower) >Then press
and hold the power button down for at least 30 seconds. >Plug power
supply back into your system >Turn it back on.

Turn the system off....remove the battery from the system...connect the system to power adaptor ONLY..the keep pressing the power button for about 15-20 seconds...then try to turn on...check if the system boots...let me know if the system works or not

You need to try to isolate the problem. Try connecting an external monitor to your laptop. Press function screen keys. If you have a picture on your external monitor then you have a video problem - most likely an inverter, although you may need a new screen, unlikely but possible.

If you have no picture then you have a system problem. Disconnect the battery and AC adapter. Remove the memory and reseat. Repower your laptop and see what happens.

TRY TAKING YOUR BATTERY OUT FOR 15 MINUTES THEN PUTTING IT BACK IN. IF IT COMES BACK ON, RECALIBRATE YOUR BATTERY BY LETTING THE BATTERY GO DOWN TO 5% THEN PLUG THE POWER CORD IN. YOUR BATTERY MAY NOT BE STRONG ENOUGH TO TURN THE SCREEN ON, EVEN THOUGH YOUR BATTERY METER SHOWS IT HAS A GOOD CHARGE. QUICK CHARGES OR FREQUENTLY UNPLUGGING IT CAUSES THE BATTERY METER TO READ DIFFERENT THAN THE AMOUNT OF CNARGE THE BATTERY IS ACTUALLY HOLDING. RECALIBRATING IT WILL GET THE METER AND THE BATTERY BACK ON THE SAME CYCLE.

Hi, could be anything to do with video. Might be the on board video card or its memory. It is also possible that your display lost its back lite and you just can see the display. Try turning the laptop on normally and let it run for a while. Try tilting the display left right up down as if trying to gaze at the inside of the display. If you can see faint traces of your desktop then it is definitely the back lite, if none then something else is at fault. Either way you will have to bring it back for repairs or replacement.
You can also try checking the memory by sliding out the panel cover at the bottom of the casing. There might be a screw or two locking the cover panel in place. Try wiggling the memory a bit, might have loosen up somehow.
If still a no go, then perhaps you're really better off sending it back for repairs/replacement.
Hope this works out for you. Pls post again how things turn up. Good luck and kind regards.